CVE-2026-2092
highpriority · track · 0EPSS 0.004 · 30 %ileDEEUJPUSEPSS · scored 2026-10-23
A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (13)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0622Keycloak: Mehrere Schwachstellen ermöglichen Umgehen von SicherheitsvorkehrungenDeutsch2026-03-05csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
- GHSA-794g-x443-36f7Keycloak: Unauthorized access via improper validation of encrypted SAML assertions2026-07-02ghsa · osvUS
Keycloak's SAML broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response, injecting an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
- BIT-keycloak-2026-2092Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions2026-08-25vendor · osvUS
A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
- JVNDB-2026-026852JVN iPedia advisory JVNDB-2026-0268522026-08-05vendor · jvndbJP
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (20)
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:3925cnnvd
- https://access.redhat.com/errata/RHSA-2026:3926cnnvd
- https://access.redhat.com/errata/RHSA-2026:3947cnnvd
- https://access.redhat.com/errata/RHSA-2026:3948cnnvd
- https://access.redhat.com/security/cve/CVE-2026-2092cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2437296cnnvd
- https://vigilance.fr/vulnerability/Keycloak-four-vulnerabilities-dated-06-03-2026-49926cnnvd
- https://access.redhat.com/errata/RHSA-2026:3925enisa_euvd
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